JavaTypeFactory (Apache Calcite API)

All Superinterfaces:

RelDataTypeFactory

All Known Implementing Classes:

JavaTypeFactoryExtImpl, JavaTypeFactoryImpl
```
public interface JavaTypeFactory
extends RelDataTypeFactory
```
Type factory that can register Java classes as record types.

Nested Class Summary
- Nested classes/interfaces inherited from interface org.apache.calcite.rel.type.RelDataTypeFactory
  RelDataTypeFactory.Builder, RelDataTypeFactory.FieldInfo, RelDataTypeFactory.FieldInfoBuilder

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`RelDataType`	`createStructType(java.lang.Class clazz)`	Creates a record type based upon the public fields of a Java class.
`java.lang.reflect.Type`	`createSyntheticType(java.util.List<java.lang.reflect.Type> types)`	Creates a synthetic Java class whose fields have the given Java types.
`RelDataType`	`createType(java.lang.reflect.Type type)`	Creates a type, deducing whether a record, scalar or primitive type is needed.
`java.lang.reflect.Type`	`getJavaClass(RelDataType type)`
`RelDataType`	`toSql(RelDataType type)`	Converts a type in Java format to a SQL-oriented type.

Methods inherited from interface org.apache.calcite.rel.type.RelDataTypeFactory
builder, copyType, createArrayType, createDecimalProduct, createDecimalQuotient, createJavaType, createJoinType, createMapType, createMultisetType, createSqlIntervalType, createSqlType, createSqlType, createSqlType, createStructType, createStructType, createStructType, createStructType, createTypeWithCharsetAndCollation, createTypeWithNullability, createUnknownType, getDefaultCharset, getTypeSystem, leastRestrictive, useDoubleMultiplication

- Method Detail
  - createStructType
```
RelDataType createStructType(java.lang.Class clazz)
```
    Creates a record type based upon the public fields of a Java class.
    
    Parameters:
    
    clazz - Java class
    
    Returns:
    
    Record type that remembers its Java class
  - createType
```
RelDataType createType(java.lang.reflect.Type type)
```
    Creates a type, deducing whether a record, scalar or primitive type is needed.
    
    Parameters:
    
    type - Java type, such as a Class
    
    Returns:
    
    Record or scalar type
  - getJavaClass
```
java.lang.reflect.Type getJavaClass(RelDataType type)
```
  - createSyntheticType
```
java.lang.reflect.Type createSyntheticType(java.util.List<java.lang.reflect.Type> types)
```
    Creates a synthetic Java class whose fields have the given Java types.
  - toSql
```
RelDataType toSql(RelDataType type)
```
    Converts a type in Java format to a SQL-oriented type.